- All sections
- C - Chemistrymetallurgy
- C08G - Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C08G 63/197 - Hydroxy compounds containing aromatic rings containing two or more aromatic rings containing condensed aromatic rings
Patent holdings for IPC class C08G 63/197
Total number of patents in this class: 43
10-year publication summary
|
3
|
2
|
2
|
3
|
5
|
4
|
9
|
4
|
3
|
5
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Gas Chemical Company, Inc. | 3474 |
8 |
| Osaka Gas Chemicals Co., Ltd. | 137 |
4 |
| Teijin Limited | 1251 |
4 |
| Ajinomoto Co., Inc. | 2291 |
3 |
| Kawasaki Kasei Chemicals Ltd. | 31 |
2 |
| SKC Co., Ltd. | 322 |
2 |
| Taoka Chemical Co., Ltd. | 57 |
2 |
| FUJIFILM Corporation | 29489 |
1 |
| Nitto Denko Corporation | 8271 |
1 |
| Toray Industries, Inc. | 6966 |
1 |
| Kyocera Document Solutions Inc. | 5666 |
1 |
| Agency for Science, Technology and Research | 3631 |
1 |
| DIC Corporation | 3808 |
1 |
| Echem Solutions Corp. | 28 |
1 |
| Ferrania Technologies S.p.A. | 2 |
1 |
| Instituto Mexicano Del Petroleo | 222 |
1 |
| The Nippon Synthetic Chemical Industry Co., Ltd. | 299 |
1 |
| Polyplastics Co., Ltd. | 604 |
1 |
| Reuter Chemische Apparatebau KG | 16 |
1 |
| Roquette Freres | 1031 |
1 |
| Other owners | 5 |